Triethylamine → 1-(4-Aminophenyl)pyrrolidin-3-yl methanesulphonate

Participants

Reaction Steps

40 ml (0.516 mol) of mesyl chloride was added dropwise at 5° C. to 83.3 g (0.4 mol) of N-(4-nitrophenly)-3-hydroxypyrrolidine (1) dissolved in 625 ml of anhydrous THF and 72.7 ml (0.6 mol) of triethylamine. The mixture was allowed to return to room temperature and was then poured onto ice. After filtering off the precipitate by suction and drying, 109 g of yellow powder (2) was obtained.

Provenance & Evidence